Machine for applying liquid to moldings.



C. I'. PLANETT.

MACHINE FOR APPLYING LIQUID TO MOLDINGS.

APPLICATION FILED FEB'. 27. 190s. 903,3 1 3.

Patented Nov. 10, 1908.

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c. .1". PLANBTT. MAGHINE POR APPLYING LIQUID T0 MOLDINGS.

APPLICATION FILED FEB. 27, 1908. I

903,813. Patented N0v,1o, 190s.

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. UNITED STATES PATENT OFFIE.

CHARLES F. PLANETT, OF LAPORTE, INDIANA, ASSIGNOR TO CHARLES H.TRUESDELL, OF LAPORTE, INDIANA.

Specification of Letters Patent.

Application led February 27, 1908.

Patented Nov. 10, 1908.

Serial No. 417,991.

- To all 'whom it may concern:

Be it known that I, CHARLES F. PLANETT, citizen of the United States,residing at Laporte, in the county of Laporte and State of Indiana, haveinvented certain new and useful Improvements in Machines for ApplyingLiquid to Moldings, of which the following is a specification.

My invention relates to machines for applying varnish or other liquidsubstances to moldings, and its chief objects are to provide anapparatus for the purpose stated that will be rapid in its operation,and for that reason will lessen the cost of manufacture of moldings;that will be efhcient in its action and that will improve the quality ofthe nished moldings by applying the linish with greater uniformity thanwhen put on by hand.

Further and more specilic objects are to provide suitable feedingmechanism for presenting the material to the applicators at the properspeed; to furnish an adjustment for the feeding devices, and to supplymeans for suitably adjusting the applicators.

In addition to the above features provision is made for substitutingbrushes of various patterns best suited to the style of moldingsoperated upon, and for regulating the supply of the liquid to thebrushes used to distribute the varnish upon the molding.

These and other important objects are accomplished by the employment ofthe apparatus illustrated in the accompanying drawings, forming a partof this application, and in which Figure 1 is a side view of my improvedmolding varnishing machine; Fig. 2 is a rear elevation; Fig. 3 is asectional view taken on the line 3-3 of Fig. 1; Fig. 4 is a frontelevation; Fig. 5 is a vertical section through the brush adjustingdevices; Fig. 6 is a fragmentary view showing the application of aplurality of brushes; Fig. 7 is a fragmentary elevational view of oneend of the brush adjusting frame; Fig. 8 is a side view of a brush andholder, and Figs. 9 and 10 are side and end views, respectively, of themolding adjusting device. Y

Referring to the details of the drawings, the numeral indicates the baseof the machine upon which are mounted frame plates 16 provided alongtheir lower margins with flanges 17 for attachment to the base 15 bybolts 18. The frame plates 16 are connected by horizontal bed plates 19,20, rigidly secured by bolts or screws 21, and separated by an intervalbelow which is located solid feed roller 22 mounted upon a shaft 23journaled in the frame plates 16. Immediately above the roller 22 islocated a coperating feed `roller 24 mounted upon a shaft 25 journaledin boxes 26 which slide in vertical slots 27 in the frame plates 16. Theroller 2.4 is narrower than the lower roller 22 and is covered with somesoft material which will not mar or injure the face of the molding whenfed between said rollers in a manner hereinafter described. I prefer toform this upper feed roller 24 of rubber as being best suited for thepurpose. The ends of the `roller shafts 23, project upon one side beyondtheir bearings and are provided with gear wheels 28, 29. The oppositeend of the shaft 23 of the lower roller carries a gear 30, which isdriven by a pinion 31 mounted upon a drive shaft 32. having the usualfast and loose pulleys 33, 34. The upper roller 24 gets its motion fromthe lower roller 22 through a train of gears 35 carried on the frameplate 16. The sliding boxes 26 of the roller 24 are moved vertically byscrews 36, having threaded connection with blocks 37 secured to flanges38 formed integral with the frame plates 16. The ends of the screws 36are connected with the said blocks by means of swivel joints 39 of awell known form, shown in section in Fig. 12. The upper ends of thescrews 36 are connected by a bar 40 and carry gear wheels 41 which aredriven by a gear 42 mounted upon the bar 40 between said wheels 41 andprovided with a crank handle 43. As the gear 42 will drive theintermeshing wheels 41 in opposite directions the screws 36 are providedwith right and left threads to produce an identical movement in theblocks 37. The upper roller 24 is mounted in the median line and havinga comparatively narrow face it is necessary to provide guides forkeeping the molding 44 in alinement therewith. There are two sets ofthese guides one in either side of the rollers, since it isimpracticable for a device for this purpose to extend between them. Thefront guides 45 are secured to the forward bed-plate 19 by bolts 46engaging slots 47 in said plate to permit of lateral adj ustability inthe guides. The rear guides 48 are secured to the bed plate 20, in thesame manner as the lirst guides and have extensions 49 which projecttoward the feed rollers, their ends being bent laterally to readilyadmit the end of the molding as it is fed, between therollers.

The bed plate is provided with a median slot 51, in which is located amolding adjusting lever 52, mounted in a longitudinal groove 53 in afixed block 54. The said lever is pivoted at. ther forward end to theblock 54 by a pin 55, and the rear end of the lever is engaged by anadjusting screw 56, by kmeans of which the said rear end of the levermay be moved. vertically.

Extending rearwardly from the frame plates 16 upon each side ofthemachine are bracket, or'side plates 57, secured to the frame platesby'bolts 58. Vertically disposed channel bars 59 are secured to theinner faces o f the side plates by bolts 60, which engage ears 61vformed integral with the channelbars. A cross beam or rail 62 connectsthe channel bars near their upper ends, and said bars form vertical waysin which is slidably mounted a brush carrier consisting of a movablerail 63 furnished at the ends with arms or extensions 64,

The arms 64 project upward and serve as stops when they abut against theiXed rail 62. The extensions 65 project downward,

and a plate or board 66 is secured thereto by bolts or screws 67. Theupper orl xcd rail 62 has a reinforcement or boss 68 in the median lineof the machine and through this boss passes an adjusting screw 69,having threaded connection therewith. The upper end of said screw isprovided with a milled head 70 to facilitate turning, and the body` ofthe screw has a flange or collar 71. Below this collar the body of thescrew is smooth and passes through a boss 72 in the movable rail, inwhich it has a turning fit, and is retained in this bearing by a pin 73. Between the collar 71 and the upper surface of the movable railthebody of the screw is. surrounded by a coiled spring 74, and the uppermargin ofthe board 66 is furnished with a notch 75 to prevent inlterference with'V the endV of said screw. Ilhe varnish, or other liquid,is appliedto the upper surface ofl the molding 44 through the medium vofabrush 76. A stem .or handle 77 is secured to the back or body 78 of thebrush andissupplied with a joint 79 which permits of lateral tilting ofthe brush rela tively to the stem. Thelatter is formed of a fiat bar andis provided with a longitudinal yslot 80. The stemis removably attachedto the board 66 by means of abolt 81, which passes through a horizontalslot 8 2 in the saidboard. The body 78 yof the brush is furnished withcavities, or receptacles 83, connected by ducts 84, and having theirbottoms provided withperforations located between the bristle tufts 86.A varnish tank or reservoir 87 is supported at al suitable heighton ashelf88, and from this reservoir a tube 89 leads downward, its lower endextending above one of the receptacles 83 in the brush, so that thevarnish will flow through said tube directly into the brush receptaclesand be distributed to the parts below by percolation through theorifices 85. The supply of liquid to the tube 89 is regulated by afaucet 90, and a drip board or pan 91 isplaced on an incline beneath thebrush to convey the surplus varnish into a receptacle 92 placed` below.

l/Vhen unusually wide moldings are to be' treated and especially whenthe contour of the surface is irregular' I find 1t advisable to employtwo or more brushes placed side by side, as shown in Fig. 7. In thiscase they joint 79 will enable one or bothbrushes to be suitablyadjusted to correspond with unusual inclinations in the moldingniembers.

The functions of the various mechanisms having been set forth inconnection with the details of construction abrief description of themethod of operating the machine will sufiice toenable one, whetherskilled in the art or otherwise, to understand its working. The firststep will beto adjust the guides to suit the width of the moldino` to becoated, and to place therollers at tlie proper distance apart toaccommodate the thickness of said molding,.such adjustment beingaccomplished by turning the crank 43. Connection having been made withany convenient source of power, and the feed rollers set in' motion, astrip of molding is placed between the front guides 45, with the face ofthe molding uppermost, and pushed between the rollers until engagedthereby, when the feed will be automatic. The molding is run throughjust far enough to reach the brush, and if not previously adjusted themachine is stopped and the brush adjusted by moving the body on thejoint 79, sliding the stem on the bolt 81 and the latter in the groove,

82 in the board 66, and at the same time moving the board up or down asVArequired by turning the milled head 70. VThe position of the moldingmay also be regulated by tilting the bar 52 by means ofthe screwL 56.When once properly adjusted very slight changes, if any, will berequired in the position ofthe brush so long as the same patternfofmolding is being treated. The reservoir 87 having been supplied with aliquid suited to the work, the faucet is lopened anda sufficientquantity of rvarnish allowed to flow into thereceptacles 83..k TheYrollers are then again set in motion, after which the action of. themachine will be continuous andautomatic, except` as to the supply ofmolding strips which are. presented in sequence to the rollers by. hand.

Having thusdescribed myinvention, what Igclaim is z- 1. In an apparatusfor the purpose specified, the combination of feed rollers, means foradjusting one of said rollers, guides for the material to be treated, abrush, a slidable frame, means for attaching the brush to said frame, areservoir, and means for conveying liquid from the reservoir to thebrush.

2. In an apparatus for the purpose stated, the combination of feedrollers, means for adjusting one of said rollers, adjustable guides, abrush, a receptacle in the brush, a slidable frame, means for adjustablyattaching said brush to the frame, a reservoir for liquid, and means forconveying liquid from the reservoir to the brush.

3. In an apparatus for the purpose stated, the combination of a solidroller, a coperating roller composed of yielding material, means foradjusting said coperating roller relatively to the solid roller,adjustable guides, a brush, receptacles in the brush, a slidable frame,means for adjustably attaching said brush to the frame, a reservoir forholding liquid, and means for conveying liquid from the reservoir to thereceptacles in the brush.

4. In an'apparatus for the purpose specified, the combination of a solidroller, a cooperating roller composed of yielding material, gearingconnecting the rollers, means for adjusting said cooperating rollerrelatively to the solid roller, adjustable guides, a brush, receptaclesin said brush, a stem for the brush, a joint in said stem, a slidableframe, means for adjustably attaching said brush to the frame, areservoir for liquid,

and means for conveying liquid from the reservoir to the receptacles inthe brush.

5. In an apparatus for the purpose specified, the combination of a solidfeed roller, a yielding roller coperating with said feed roller, meansfor adjusting said yielding roller relatively to the solid roller,gearing connecting said rollers, adjustable guides, a brush, receptaclesin said brush having perforated bottoms, a jointed stem for the brush, aspring-held frame, means for adjusting the frame vertically, means foradjustably attaching the brush to the frame, a reservoir, and a tubeconnecting the reservoir With said brush.

6. In an apparatus for the purpose specified, the combination with feedrollers, one of said rollers having a yielding surface, means foradjusting one of said rollers relatively to the other, gearingconnecting the roller, and adjustable guides for the material to beoperated upon, of a brush having receptacles provided with perforatedbottoms, a jointed stem for the brush, a yielding frame, means foradjusting the frame vertically, means for adjustably attaching the brushto the frame, a reservoir, a pipe for conveying liquid from thereservoir to said brush, a drip pan, and a receptacle for the surplusliquid.

In testimony whereof I aHiX my signature in the presence of twoWitnesses.

CHARLES F. PLANETT.

Witnesses H. W. WORDEN,

Bnssm FoLANT.

